test_bug114649.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=114649

-->

<head>

  <title>Test for Bug 114649</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body onload="run()">

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=114649">Mozilla Bug 114649</a>

<iframe id="display" style="width: 500px; height: 500px;"></iframe>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 114649 **/

var gIFrame;

var gCurrentWidth = 500;

var gGotEventsAt = [];

var gInterval;

var gFinished = false;

function run() {

    SimpleTest.waitForExplicitFinish();

    SimpleTest.requestFlakyTimeout("Simulating dragging to resize a window");

    gIFrame = document.getElementById("display");

    var subdoc = gIFrame.contentDocument;

    subdoc.open();

    subdoc.write("<body onresize='window.parent.handle_resize_event()'>");

    subdoc.close();

    setTimeout(do_a_resize, 50);

function do_a_resize()

    // decrease the width by 10 until we hit 400, then stop

    gCurrentWidth -= 10;

    gIFrame.style.width = gCurrentWidth + "px";

    if (gCurrentWidth > 400) {

        setTimeout(do_a_resize, 50);

function handle_resize_event()

    gGotEventsAt.push(gCurrentWidth);

    if (gCurrentWidth == 400) {

        check_resize_events();

function check_resize_events()

    if (gFinished) {

        // We can get here when the browser can't process the resizes and

        // dispatch resize events as fast as we're doing the resizing.  We can

        // then end up with multiple resize events queued up after we set our

        // final size.  This return makes sure that in that case we avoid

        // calling SimpleTest.finish() more than once.

        return;

    gFinished = true;

    ok(gGotEventsAt.length >= 2, "We should get more than one event");

    isnot(gGotEventsAt[0], 400, "The first event shouldn't be for the final size");

    SimpleTest.finish();

</script>

</pre>

</body>

</html>